Protex Electronic Lock with Supervisor and 7 Codes: Dual, Delay

Safe lock help · Protex

Safe lock troubleshooting › Protex › Master, supervisor and user code lock (Protex sheet with no model name)

Protex’s manual page includes a user sheet for an electronic lock with seven codes: a master code (ID 1), a supervisor code (ID 2) and user codes (IDs 3 to 7), each 1 to 10 digits. It has dual control and time delay options and a 5-minute lockout after three wrong codes. The sheet does not name the lock or the safe model, so we cannot say for sure which safes it belongs to. If your safe’s lock matches this description, it may be this one. This guide covers how to open it, change the codes, use dual control and the time delay, and what the lockout means.

• How to open
• Change codes
• Lights
• Lockout
• Time delay (master code)
• Troubleshooting
• Manuals

Want the whole manual? Jump to the manufacturer download links.

Is this your lock?

• A keypad lock with * and # keys, a yellow light that shows the time delay, a beeper, and a low battery signal and an unlocking signal.
• Seven codes: master code (ID 1), supervisor code (ID 2) and user codes (IDs 3 to 7). Codes are 1 to 10 digits long.
• The sheet describes single mode, dual control mode, supervising dual control mode and a time delay of 1 to 99 minutes.
• There is no model number on the sheet. If you are not sure it is yours, send us a photo of your safe’s label and keypad.

How to open it

1. Single mode (the normal setting): press *, enter your code and press #.
2. Open the door with the handle.

Dual control mode

1. Press *, enter the first code, press #, then enter the second code and press #. Any two codes will do.
2. The pause between the two codes is 60 seconds at most.

Supervising dual control mode

1. Press *, enter the first code, #, then the second code and #. One of the two must be the master code or the supervisor code. You have 60 seconds between them.

• The factory master and supervisor codes are printed on Protex’s sheet. We are not printing them here.

How to change codes

Change the master code

1. Press #, the original master code, #, then 1 *.
2. Enter the new master code and #, then the new master code again and #.

The master code sets a supervisor or user code

1. Press #, the master code, #, then the ID number (2 for the supervisor, 3 to 7 for users) and *.
2. Enter the new code and #, then the new code again and #.

The supervisor sets a user code

1. Press #, the supervisor code, #, then the user ID (3 to 7) and *.
2. Enter the new user code and #, then the new code again and #.

A user changes their own code

1. Press #, the original user code, #, the new user code, #, then the new user code again and #.

The supervisor changes their own code

1. Press #, the original supervisor code, #, then 2 *, the new supervisor code and #, then the new supervisor code again and #.

Delete a user or supervisor code

1. With the master code: press #, the master code, #, the user number (or the supervisor’s ID) and * # #.
2. With the supervisor code: press #, the supervisor code, #, the user number, then * # #.

Switch between single, dual and supervising dual mode (master code)

1. Single mode: #, master code, # 0 # 0 #.
2. Dual control mode: #, master code, # 1 # 1 #.
3. Supervising dual control mode: #, master code, # 2 # 2 #.

• The sheet also describes a management reset code (MRC) that can put the master code back to the factory setting if it is lost. We are not printing those steps: call us.

Lights and beeps

Wrong-code lockout

Three consecutive invalid codes start a 5-minute lockout. Wait it out before you try again.

Time delay (master code)

The delay can be set from 01 to 99 minutes.

1. Set it: press #, the master code, #, the minutes (01 to 99), #, the same minutes again, #. When a time delay is set, the lock goes to sleep mode.
2. To open with a delay: press any button to start the delay. The yellow light flashes once every 5 seconds, and faster in the last 10 seconds, ending with 2 beeps. The keypad holds during the delay.
3. After the delay you have 2 minutes to enter your code and open the safe. If nothing happens in those 2 minutes, the lock goes back to sleep.
4. Delete it: press #, the master code, # 0 0 # 0 0 #.

If it still won’t open

It will not open and the keypad does not respond

If you have just entered three wrong codes, it is in the 5-minute lockout. Otherwise the batteries may be dead. The sheet does not say how to replace them: call us.

The supervisor and user codes stopped working

Changing the master code deletes the supervisor code and all user codes. Set them up again with the master code.

I lost the master code

Please do not keep guessing. Call us.

Download the full manufacturer instructions

More lock guides

• Protex PR100 electronic safe lock (master code, 6 users, time delay)
• Protex DigiPaz-309 and DigiPaz-307 keypad
• Protex 202A oval keypad, ESL10-style lock (star and pound keys)
• ← All safe locks

About this guide. This is an independent guide from Steve’s Lock, Safe and Alarm, a safe and lock dealer. Brand and model names belong to their owners and are used only to help you identify your lock. We are not affiliated with the manufacturers. These steps summarize the manufacturers’ own instructions; your lock may be a different version, so if anything here does not match what your lock does, follow your manual or call us. Always change codes with the safe door open, and test the new code several times before you close the door.

Steps last checked against the manufacturer documents on October 20, 2026.